WiFi going to 2MB instead of 54MB after sleep or hibernation

I have a dell N7010 that I usually dont power off or close the lid,  Someone in my family did so and all I get afterwards is 2MB wireless signal compared to 54MB usually.  This has happened twice in the past 7 months.  And alwasy after hibernation or sleep.  I uninstall and reinstall drivers with no success.  Built in network (wired) works just fine at 54MB.
I just reimaged my hard drive to fix this problem and it was working fine until overnight.
I had not set the power settings and it went to hibernation or sleep.  I  had to hit power button to resume windows.  HELP
tcandsAsked:
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AnuroopsunddCommented:
Please check the power saving options in your network card. they may be lowering to save power.
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maximus5328Commented:
Wireless speed varies. Did you give it plenty of time to wake up? Also uncheck the option to "allow Windows to turn off this device" in advanced properties for the wireless adapter.
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